diff options
| author | cinap_lenrek <cinap_lenrek@felloff.net> | 2014-02-02 18:01:13 +0100 |
|---|---|---|
| committer | cinap_lenrek <cinap_lenrek@felloff.net> | 2014-02-02 18:01:13 +0100 |
| commit | bfee76e5d34e893f7af047e6cd4358f5f1fbf428 (patch) | |
| tree | 0ae07e2c95488ebc67bbcaf9374a09097350959c /sys/src/9/pc64/dat.h | |
| parent | b7b3406657ef87fef57c3b639296d5cd33a5c3ae (diff) | |
pc64: track per process kmap page tables in separate MMU list.
we have to keep kmap page tables in ther own list
because user tables are subject to (virtual) tlb flushing.
we never free kmap page tables except in mmurelease()
where we just link the kmap mmu list in front of the user
mmus and call mmufree() which will free all the mmu's
of the process.
Diffstat (limited to 'sys/src/9/pc64/dat.h')
| -rw-r--r-- | sys/src/9/pc64/dat.h | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/sys/src/9/pc64/dat.h b/sys/src/9/pc64/dat.h index 713ec590e..ca0f745c9 100644 --- a/sys/src/9/pc64/dat.h +++ b/sys/src/9/pc64/dat.h @@ -137,8 +137,11 @@ struct MMU #define NCOLOR 1 struct PMMU { - MMU *mmuhead; - MMU *mmutail; + MMU* mmuhead; + MMU* mmutail; + MMU* kmaphead; + MMU* kmaptail; + int kmapcount; int mmucount; }; |